STARS 2014- Reaching the Bottom in Nanotechnology: Quantum Aspects of Nanoplasmonics.
Joseph W. Haus, Ph.D., Electro-Optics, presents at the The 5th annual STARS symposium-which stands for Spotlight on Technology, Arts, Research and Scholarship. STARS showcases exciting ...
By: University of Dayton
More here:
STARS 2014- Reaching the Bottom in Nanotechnology: Quantum Aspects of Nanoplasmonics. - Video
Nanotechnology in the Nature
Although we think that nanotechnology comes under the man #39;s creations, it has already coming with the nature #39;s creations.......!
By: Rekla Wickramanayake
Originally posted here:
PUBLIC RELEASE DATE:
19-Oct-2014
Contact: Kat J. McAlpine katherine.mcalpine@wyss.harvard.edu 617-432-8266 Wyss Institute for Biologically Inspired Engineering at Harvard @wyssinstitute
DNA has garnered attention for its potential as a programmable material platform that could spawn entire new and revolutionary nanodevices in computer science, microscopy, biology, and more. Researchers have been working to master the ability to coax DNA molecules to self assemble into the precise shapes and sizes needed in order to fully realize these nanotechnology dreams.
For the last 20 years, scientists have tried to design large DNA crystals with precisely prescribed depth and complex features a design quest just fulfilled by a team at Harvard's Wyss Institute for Biologically Inspired Engineering. The team built 32 DNA crystals with precisely-defined depth and an assortment of sophisticated three-dimensional (3D) features, an advance reported in Nature Chemistry.
The team used their "DNA-brick self-assembly" method, which was first unveiled in a 2012 Science publication when they created more than 100 3D complex nanostructures about the size of viruses. The newly-achieved periodic crystal structures are more than 1000 times larger than those discrete DNA brick structures, sizing up closer to a speck of dust, which is actually quite large in the world of DNA nanotechnology.
"We are very pleased that our DNA brick approach has solved this challenge," said senior author and Wyss Institute Core Faculty member Peng Yin, Ph.D., who is also an Associate Professor of Systems Biology at Harvard Medical School, "and we were actually surprised by how well it works."
Scientists have struggled to crystallize complex 3D DNA nanostructures using more conventional self-assembly methods. The risk of error tends to increase with the complexity of the structural repeating units and the size of the DNA crystal to be assembled.
The DNA brick method uses short, synthetic strands of DNA that work like interlocking Lego bricks to build complex structures. Structures are first designed using a computer model of a molecular cube, which becomes a master canvas. Each brick is added or removed independently from the 3D master canvas to arrive at the desired shape and then the design is put into action: the DNA strands that would match up to achieve the desired structure are mixed together and self assemble to achieve the designed crystal structures.
"Therein lies the key distinguishing feature of our design strategyits modularity," said co-lead author Yonggang Ke, Ph.D., formerly a Wyss Institute Postdoctoral Fellow and now an assistant professor at the Georgia Institute of Technology and Emory University. "The ability to simply add or remove pieces from the master canvas makes it easy to create virtually any design."
Read the original:
9 hours ago
DNA has garnered attention for its potential as a programmable material platform that could spawn entire new and revolutionary nanodevices in computer science, microscopy, biology, and more. Researchers have been working to master the ability to coax DNA molecules to self assemble into the precise shapes and sizes needed in order to fully realize these nanotechnology dreams.
For the last 20 years, scientists have tried to design large DNA crystals with precisely prescribed depth and complex features a design quest just fulfilled by a team at Harvard's Wyss Institute for Biologically Inspired Engineering. The team built 32 DNA crystals with precisely-defined depth and an assortment of sophisticated three-dimensional (3D) features, an advance reported in Nature Chemistry.
The team used their "DNA-brick self-assembly" method, which was first unveiled in a 2012 Science publication when they created more than 100 3D complex nanostructures about the size of viruses. The newly-achieved periodic crystal structures are more than 1000 times larger than those discrete DNA brick structures, sizing up closer to a speck of dust, which is actually quite large in the world of DNA nanotechnology.
"We are very pleased that our DNA brick approach has solved this challenge," said senior author and Wyss Institute Core Faculty member Peng Yin, Ph.D., who is also an Associate Professor of Systems Biology at Harvard Medical School, "and we were actually surprised by how well it works."
This video is not supported by your browser at this time.
Scientists have struggled to crystallize complex 3D DNA nanostructures using more conventional self-assembly methods. The risk of error tends to increase with the complexity of the structural repeating units and the size of the DNA crystal to be assembled.
The DNA brick method uses short, synthetic strands of DNA that work like interlocking Lego bricks to build complex structures. Structures are first designed using a computer model of a molecular cube, which becomes a master canvas. Each brick is added or removed independently from the 3D master canvas to arrive at the desired shape and then the design is put into action: the DNA strands that would match up to achieve the desired structure are mixed together and self assemble to achieve the designed crystal structures.
"Therein lies the key distinguishing feature of our design strategyits modularity," said co-lead author Yonggang Ke, Ph.D., formerly a Wyss Institute Postdoctoral Fellow and now an assistant professor at the Georgia Institute of Technology and Emory University. "The ability to simply add or remove pieces from the master canvas makes it easy to create virtually any design."
The modularity also makes it relatively easy to precisely define the crystal depth. "This is the first time anyone has demonstrated the ability to rationally design crystal depth with nanometer precision, up to 80 nm in this study," Ke said. In contrast, previous two-dimensional DNA lattices are typically single-layer structures with only 2 nm depth.
See the article here:
Crystallizing the DNA nanotechnology dream: Scientists have designed the first large DNA crystals
EBOLA VIRUS "DESIGNED" - The Nanotechnology Depopulation Agenda
By designing a "terror" virus, they create global panic. From that global panic they cause many to "want" an antivirus. With that antivirus they can kill mil...
By: Christianoracle
Here is the original post:
EBOLA VIRUS "DESIGNED" - The Nanotechnology Depopulation Agenda - Video
Published: Thursday, October 16, 2014 at 11:45 a.m. Last Modified: Friday, October 17, 2014 at 12:02 a.m.
The University of Alabama on Oct. 23-24 will host a nanotechnology summit meant to foster collaboration and showcase the latest research and innovations.
The second NanoBio Summit will be at the Bryant Conference Center on the UA campus. Approximately 200 researchers from across the state are expected to attend. Registration for the summit has closed, according to UA spokesman Chris Bryant.
The two-day summit is a forum meant to bring together students, researchers and industry professionals from a range of scientific, engineering and medical fields while showcasing the latest findings, innovations, and uses of nanotechnology.
Roughly a dozen speakers from regional universities, state and federal agencies and the private sector are scheduled make 25-minute presentations on Oct. 23. The next day, speakers include UA officials and representatives from the Economic Development Partnership of Alabama and the Alabama Department of Commerce.
Themes for the sessions include nanobioscience, nanobiotechnology, biomedical engineering and nanomedicine; nanoegineering and nanomaterials; and collaboration, discovery and commercialization.
Andrew D. Penman, vice president of drug development for the Southern Research Institute, will be the afternoon keynote speaker on Oct. 23 and make a presentation titled "Drug Development A Perspective on Changing Times in the Industry."
The evening keynote speaker Oct. 23 is Richard M. Myers, president and science director of the HudsonAlpha Institute for Biotechnology, who will make the presentation "Using Genomics and Genetics to Understand Human Health and Disease."
Co-sponsors include Alabama State University, Tuskegee University, the National Science Foundation, the National Institutes of Health, ICE (Institution of Civil Engineering) Publishing, VWR International, Eppendorf and Tescan USA.
Continued here:
Nanotechnology summit at University of Alabama to draw hundreds of researchers
Wade Adams - Nanotechnology and Energy
http://erenewableenergyinfo.com Dr. Wade Adams is the Director of the Smalley Institute for Nanoscale Science and Technology at Rice University. The Institute is devoted to the development...
By: Renewable Energy
Read more:
Bill Graveland, The Canadian Press Published Thursday, October 16, 2014 7:01PM EDT
CALGARY -- Nanotechnology similar to that used to kill tumours in cancer patients could be adapted to improve in situ oil recovery in Alberta's oilsands, says an international researcher.
Stanley Bryant, a world-leading nanotechnology expert from the University of Texas in Austin, was introduced Thursday as the latest Canada Excellence Research Chair at the University of Calgary.
A federal energy research program awards world-renowned scientists and their teams up to $10 million over seven years to establish research programs.
"I don't need to remind this audience of the world-class petroleum resource here in Alberta. I don't need to remind this audience either of the litany of challenges associated with that resource," Bryant said at a University of Calgary ceremony.
"What we want to do is reduce the environmental impact of existing development strategies to come up with entirely new ways to extract energy involving little or even no environmental impact."
Bryant will receive $10 million from the federal government and another $10 million from the university to create a chair for materials engineering for unconventional oil reservoirs at the Schulich School of Engineering and Faculty of Science.
He said one avenue of research will be to use nanoparticles, about a thousand times smaller than red blood cells, to improve oil recovery by making steam injected into the ground even thinner.
"You can disperse these things in a liquid like water and they will stay dispersed. If you make these things out of ordinary iron oxide --which we call rust -- and you apply an oscillating magnetic field, those particles will get hot, real hot," said Bryant.
"They're already using that phenomenon to kill tumour cells in patients with incredible specificity. We want to see if we can use the same phenomenon to get heat into the oilsands and recover energy that way."
See the original post here:
Researcher receives $20 million to study oil recovery in Alberta's oilsands
nanotechnology - Muhannad Alzahrani
English work talking about nanotechnology .
By: zexe s
Read the original post:
A Japanese construction company, Obayashi Corporation, has been investigating the concept for a space elevator. Courtesy: Obayashi Corp.
Want to ride an elevator into space? While the idea has been around for more than 100 years, a breakthrough in nanotechnology could mean we will be riding into space on a cable made of diamonds.
Scientists at Penn State University in the US released a research paper last month that showed the way forward to producing ultra-thin diamond nanothreads that have a strength and stiffness greater than that of todays strongest nanotubes and polymers.
John Badding, professor of chemistry at Penn State University, said his team had made the breakthrough while examining the properties of benzene molecules and that it took 18 months of study to make sense of what the team had been seeing.
It is as if an incredible jeweler has strung together the smallest possible diamonds into a long miniature necklace, Badding said. Because this thread is diamond at heart, we expect that it will prove to be extraordinarily stiff, extraordinarily strong, and extraordinarily useful.
Benzene breakthrough
The experiments involved putting benzene a liquid under compression to form a solid material.
What we found was that because our experiment compressed the benzene much more slowly than had been done before, these new materials formed, he said.
Everybody thought that the benzene molecules would link together in a way that was very disorganized, like a glassy amorphous material.
Instead, what caught our attention was that our experiments told us there was order in the benzene and that was the shock, he said.
Visit link:
Want to ride an elevator to space? New breakthrough could make it possible
(CNN) Want to ride an elevator into space? While the idea has been around for more than 100 years, a breakthrough in nanotechnology could mean we will be riding into space on a cable made of diamonds.
Scientists at Penn State University in the US released a research paper last month that showed the way forward to producing ultra-thin diamond nanothreads that have a strength and stiffness greater than that of todays strongest nanotubes and polymers.
John Badding, professor of chemistry at Penn State University, told CNN his team had made the breakthrough while examining the properties of benzene molecules and that it took 18 months of study to make sense of what the team had been seeing.
It is as if an incredible jeweler has strung together the smallest possible diamonds into a long miniature necklace, Badding said. Because this thread is diamond at heart, we expect that it will prove to be extraordinarily stiff, extraordinarily strong, and extraordinarily useful.
Benzene breakthrough
The experiments involved putting benzene a liquid under compression to form a solid material.
What we found was that because our experiment compressed the benzene much more slowly than had been done before, these new materials formed, he said.
Everybody thought that the benzene molecules would link together in a way that was very disorganized, like a glassy amorphous material.
Instead, what caught our attention was that our experiments told us there was order in the benzene and that was the shock, he said.
Original post:
Cosmic elevator could reach space on a cable made of diamonds
Blood Moon Tetrad Tribulations And The Coming Astral Kingdom of God
God vs Satan, the Antichrist and his devils Alliance: Battle for the Power of God. Satan #39;s Battle for the Kingdom of God began 06/06/06 Before 06/06/06 No Nanotechnology Product or Patent...
By: princeadeshoga
See more here:
Blood Moon Tetrad Tribulations And The Coming Astral Kingdom of God - Video
Nanotechnology hydrophobic coatings
Nontoxic water repellent coatings for car, stone, glass, wood.
By: Michal Harcej
Go here to see the original:
Microfluidics and Nanotechnology for Biology and Medicine
By: NanoBio Node
Read more:
Microfluidics and Nanotechnology for Biology and Medicine - Video
Nanotechnology creates new anti microbial nano silver concentrate Microbisil HD
http://goldsolinc.com/ Nanotechnology scientists create Microbisil: A new standard of Nano Silver Concentrate for Anti Microbial applications. Water, drinks and soda cans around the world can...
By: GoldSol Inc. Nano Particles
The rest is here:
Nanotechnology creates new anti microbial nano silver concentrate Microbisil HD - Video
Shirley Tang of the Waterloo Institute for Nanotechnology
Shirley Tang is a Professor at the University of Waterloo in the Faculty of Science within the Department of Chemistry. She works on designing new nano-materials and hopes to create new tools...
By: uwaterloo
Read more here:
Shirley Tang of the Waterloo Institute for Nanotechnology - Video
Fighting Ovarian Cancer with Nanotechnology
Researchers at Florida International University are developing a new nanotechnology drug delivery method to treat ovarian cancer.
By: FloridaInternational
More here:
Scientists believe green tea could be used to develop drugs to fight cancer Drink is made up of chemicals including EGCG (Epigallocatechin Gallate) Researchers from Singapore think EGCG could have anti-cancer effects It has been combined with anticancer protein Herceptin to target tumours Institute of Bioengineering and Nanotechnology finding could prove crucial
By Jenny Awford for MailOnline
Published: 11:37 EST, 5 October 2014 | Updated: 12:04 EST, 5 October 2014
Scientists believe green tea could be used to develop drugs to fight cancer
It has been shown to lower cholesterol, improve blood flow and protect against heart disease.
And now scientists believe green tea could be used to develop new drugs to fight cancer.
A chemical extracted from the beverage is an ideal carrier of proteins that combat the disease, according to research by the Institute of Bioengineering and Nanotechnology, Singapore.
Green tea is made up of a class of chemicals called catechins, the most abundant of which is EGCG (Epigallocatechin Gallate).
It is believed EGCG is responsible for green tea's health benefits and could have anti-cancer effects.
Dr Joo Eun Chung and his colleagues have shown anticancer protein Herceptin can combined with EGCG to form a stable and effective complex to deliver a drug to a tumour site.
View post:
Green tea could helps scientists develop new cancer fighting drugs
LBC nanotechnology p.23
uploaded in HD at http://www.TunesToTube.com.
By: SimpleAClass
See original here:
"Nano-machines" (around one billionth of a metre in size) of the future will need tiny devices to reduce friction and make movement possible. The C60 molecule, also known as fullerene or buckyball, seemed to many an excellent candidate for nano-bearings. Unfortunately, the results so far have been conflicting, calling for further studies, like the one carried out by a theoretical team involving SISSA, ICTP, CNR and EMPA. Through a series of computer simulations the scientists uncovered the reason for the experimental discrepancies and shed light on the true potential of this material.
About 3500 years ago, man invented the wheel to make life easier. Then, thanks to Leonardo Da Vinci's genius, the wheel was made smaller to obtain ball bearings. And today? "Today we are trying to get even smaller: scientists are thinking about nano-bearings," comments Andrea Vanossi, of the CNR -- Democritos and the International School for Advanced Studies (SISSA) of Trieste, among the authors of a study that has just been published in Nanoscale. "In the future we'll have many nano-machines capable of carrying out the most diverse tasks, for example transporting medicines inside the human body. In order to save energy, many of these vehicles will have to able to move efficiently, using as little energy as possible, and "nano"-sized ball bearings may help achieve this goal."
"Scientists thought they could use C60, a hollow carbon nanosphere, measuring one nanometre in diameter," explains Erio Tosatti, SISSA professor and another author of the study," but there's a problem: the experimental results are at complete variance with each other." C60 has a temperature (260 Kelvin) at which the molecules suddenly become free to rotate, which hopefully has a role in friction. The two most important experiments carried out to date, however, have yielded conflicting results: above this temperature, when the material was made to slide over a substrate, in one case there was no significant decrease in friction, whereas in the other the decrease was dramatic, a good 100%. "What's going on? If we assume that the measurements are correct and the experiments performed correctly (and we have no reason to believe otherwise) how do we explain this difference?," wonders Vanossi. "For this reason, we decided to verify."
The team (a collaboration between SISSA, the International Centre for Theoretical Physics "Abdus Salam" ICTP of Trieste, the Italian National Research Council CNR, and the Swiss Federal Laboratories for Materials Science and Technology) conducted a theoretical, simulation-based study.
"We simulated the tiny tip of an electron microscope bearing a C60 flake, which was dragged over a surface also made of C60," explains Vanossi. "We discovered that when the flake was attached in such a way that it couldn't rotate the friction did not decrease, even if we raised the temperature to above 260 K. It's as if the bearings making up the flake interlocked with the substrate, with no nano-bearing effect. However, when the flake was free to rotate there was a dramatic drop in friction and the flake could slide over the surface far more smoothly." But here the drop in friction is not due to the ball bearing effect, but to the change in contact geometry.
The two states therefore reproduce the results of the two experiments. "Our data faithfully reflect the empirical observations," concludes Tosatti. "This of course does not bode well for the future use of fullerite to reduce friction at the nanoscale, in that the nanobearing function is not confirmed, but it does finally shed light on the physics of this problem."
Video: https://www.youtube.com/watch?v=nEKowZOz3Ts
Story Source:
The above story is based on materials provided by Sissa Medialab. Note: Materials may be edited for content and length.
See original here:
Nanotechnology: Fullerene spheres can be used to slide in the nanoworld